3 DIFFERENT BUICK HUB CENTER GREASE CAPS ALUMINUM BRASS ROUGH 1930's 1920's

Description

This is a trio of Buick center caps from the teens through early 30's.  One is  made of cast aluminum with "Buick" in script on it.  There are a couple chunks knocked out of the side but no dents in it (cast instead of pressed) .  Two  are banged up
brass with different size "Buick" script on them and plenty greasy.   One looks functional but the other is ding up around the threaded area.  They are 3 9/16 - 3 1/2"  OD x 1 3/4".  ID is on the cast one is 3.23-3.28, on the brass ones its 3.374- 3.4"  Check the dimensions carefully as there are many different sizes of the same cap and several look the same.